129971320

素因数分解:

$2^3\times 5^1\times {\mathrm{827}}^1\times {\mathrm{3929}}^1$

素因数の和:4767

約数の個数: 32

約数和(自身を含む): 292863600

約数和(自身を除く): 162892280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 827, 1654, 3308, 3929, 4135, 6616, 7858, 8270, 15716, 16540, 19645, 31432, 33080, 39290, 78580, 157160, 3249283, 6498566, 12997132, 16246415, 25994264, 32492830, 64985660, 129971320]

約数ペア:

[(1, 129971320), (2, 64985660), (4, 32492830), (5, 25994264), (8, 16246415), (10, 12997132), (20, 6498566), (40, 3249283), (827, 157160), (1654, 78580), (3308, 39290), (3929, 33080), (4135, 31432), (6616, 19645), (7858, 16540), (8270, 15716)]